Improvement in machines for molding and pressing brick by hydraulic pressure



5 Shear-Sheet 1.

E. R 0 G E R S. MACHINE FOR omma AND PRESSING 1mm: BY HYDRAULIC PRESSURE.- z,4g1, Patented Sept.19, 1876.

ATTEST.

INVENTEIH.

hyzriks. Puom-Lmiemmin. msumamu. n. cv

5 Shqets-Sheet 2.

E. ROGERS. MACHINE FOR MOLDING AND rnmssma nmcx BY nvnmvmc PRESSURE. No.18Z,481. Patented Sept. 19, 1876.

"TEST mvzurnn.

MPH-5R5. PNOTO-LITHOGRAFHER. WASHINGTONv D C.

' 5 Sheets-Sheet 3. E. means. MACHINE FOR MOLDING AND PRESSING BRICK BY HYDRAULIC PRESSURE. N 182,481; Patented Sept; 19, 1876.

E a I 1 wa 7 a:

T WNVENTEIH.

NIKE-RS, PEDTO-LITMOGRAPHER, WASI'HNGTON. D C.

I 5Sheets-Sheet5. E. ROGERS. MACHINE FOR MOLDING ARD-PRESSIN'G BRICK BY HYDRAULIC PRESSURE.

Patented Sept. :19, 1876.

I (fir/1 lllg INVENTIJR:

nil-T7528. PNOTILLITHOGRAFHEH, WASHINGTON. D v 2.

.State of Ohio, have invented a new and useful;

Pressin g Bricks by Hydraulic Pressure, which;

.specification, reference being had to' the a'ccompanying. drawings.

.in .the construction of the valve-box, which .has a, central seatplate common to thethree v valves, and. water-supply and, exhaust chamibers also common'to all the valves' .sists in the combination of the,appropriate hereafter described.

connections. with the water-engine, by which .is operated the valve by which, communica pthe. water-supply is opened and closed.

.;.in..-the combination of th'e appropriate slidevalve and connectionswiththe reversingen'- gine of the upper follower-piston.

in .the combination device by which is held .:.shut the. valve closing commnnicationbetween .the low-pressure pump and the mold follower-cylinder.

inthe combination of-parts foriningjthe ad .justable stopdevice for the lower follower-pis- .ton in its descent.

on my brick-machine patented ,S eptember23, 1873, No. 143,188. i

6.. Figs. ;2 and 3 are,respective ly, top andside wiews ot'flthe, reversing engines of the valve bywhichcommunication is closed between the .water-supplyg and the cylinder of the up er" ..;follower-pis,ton. Fig. 4 is a .diagramillustrat V ing the tripping device of the pawl which prevents the reversal of the slide-valve ofthe sing the feeder-engine and discharge-water chamber insection at I) b", Fig. 6. Fig. Gis 1 :E ROGERS, 0F

CLEVELAND, OHIO.

IMPROVEMENT IN MACHINES FOR MOLDING AND PBESSING .BBICKEY I I, YD R. \,IJ LIC Specification forming part .of Letters Patent No. 182,48 l, dated September 19, 1876; application filed June 2 0, r876.

To all whom it may concern:

Be it known that I, ETHAN BoeERs, of Glevelanchin the county of Guyahoga and:

Improvement in Machines for Molding and-j improvement is fullyset forthin the following? The first part. of my improvement consists The secondpart of myimprovement convalve. and. connections 1 with the feeder, as

The third .part of my improvement consists inthe combination of the appropriate valve .tion between the upper follower-cylinderand The fourthpart of my inn prov ementconsists The fifth part of my improvement consists The sixth part ofimy improvement consists .This. invention is mainly an improvement Figure 1 is .a vertical section at a? a", Fig.

aforesaid engine. Fig. 5 is an elevation showfpump's.

The water enters a horizontal section at c" 0*,Fig. ,1. Fig. 7 isan inverted side view of part of thc'valve 10 'is a vertical section through the valve-box at d" d", Fig. 91 11 is avemcai section I through the valve-'box' at 0" e",1Fig. 9 "Fig. l2jis a vertical section through thevalve-box atf f ",Fig. 9. 13 'is' a vertical section The hydrostatic pistons A andB, with the mold-followers or platens A andfB are similar'to thosedescribedin my before-mentioned invention, exce t-tn at the followers are fewer in number, "and the pistons'proportionally reduced in diameter.

said patent, -also the' g'eneral principlefof operation, the bricks being com pressed to a cerchanical devicesby which the motions of the press are controlled The cylinders O andD are both in communication 'witha vertical water-pipenE, receiving'water through a supply-pipe,"F. The upper end of the'pipe isin communication,

through a valve-chamber, -E, with an outflowwater" chamber, G, from whichthe water-escapes into the supply tank of thepressureg g the pipe ,F through a valve-cliainber, H,"in constant communication, through a"pipe," I, with" the ;-high pressure pump. Thevalve-chamberjH is in communi- "catiomthrough'the port'J of the valve K, with the low-pressure pump by means 0f'the pi'pe The valveK is fre'e to drop at all, times, except when forced up by the entrance; of water into the'valve-chamber from the low-pressure pump. ""The'valve' is lielddown at intervals' againstthe pressure of the waterfrom the l0w-pressnre pump, asand fora purpose hereafter 'described. The valve-chamber E contains three valves. The lower valve, M, is seated in-the bottom of the chamber, and has a stem, N,passing down v The cylinders G 'andyD are also similar to, thosefdescribed in" afore- S forms the seat.

between the chamber E and the outflowchamber G. l The stem S of the valve S passes upward through the top of chamber G, and is attached to the lever T, fulcrumed upon a standard, U, and having one end secured by meansof rods V and V to the piston A. The rod V isfirmly attached to the piston A, and extends vertically upward through a stuffingbox, NV, in the top of the cylinder (3. The

rod V isjointed to the rod Vand lever T.

The connection betweenthevalve-stem S and lever T is not rigid, but is made by means of a stirrup-link, S hanging from the lever,

through whose lower part the stem passes; and the stem also passes through a rubberblock spring, S and has nuts screwed upon its end, resting upon the top of the spring; The arrangement is such that when the valve is raised firmly against its seat that end of "thelever T may. continue to rise, and the spring is compressed, thus causing no breakage of parts, such as would result if theconnection between the 'valve and lever were rigid.

The valve S is tubular at S ,formin g the port of the valve to, of which the bottom of valves S are radial orifices leading from port S into the water-chamber G. The stemot of valve to works axially in the valve M. Said stem has a collar, ta which prevents its being drawn out of its bearing in the valve, the collar engaging the inner side of a bushing, M, which is screwed into the valve, and

which'forms the bearing of the stem a Beneath the collar a forming the lower end of thestem a is a spiral spring, a tending to keep the collar in contact with the bushing M. b is the reversing-cylinder of the lower mold-piston B. The lower end of this cylinder is open, and its upper end above the piston b is constantly supplied with water under pressure by a pipe, I), communicating with I the low-pressure-pump pipe L. The rod I) of the piston is connected to the lever c, fulcrumed to a hanger, D and connectrd to the lower piston B by jointed rod B and rigid rod B the latter passin through a suitable stuffingbox, D d is the reversing-cylinder of the upper mold-piston'A, and d is the piston 1 therein, whose rod, (1, is connected to the lever T. This cylinderreceives water from the valve-box P, to operatethe piston through water-pipes d d The upper chamber P of i the valve chest or box P is inconstant communication, by a pipe, L, withthe low-pressure pipe L, so as to contain...water, under a constant pressure. Extending horizontally across the interior of the valve-box is the seatplate P having suitable seats and ports for the slide-valves e f g. The lower part P of the valve-box has a central chamber, h, extending across it transversely to the valves, and in communication with the supply-tank of the pumps. The exhaust-ports h of all the valves are in communication withv chamber h. The end ports 0 e of valve 0 communicate with chambers c a, connected, respectively, by the pipes 61 d with the cylinder d.

The valve o is operated by the following means: t' is a rock-shaft extending through the valve-box. Above the valves on this shaft is a collar, i adjustable and held in position by a set-screw, 01 t is a lug on the underside of the collar, extending downward into the opening 6 through which the water descends to the Water-port 6 The ends of the shaft 41, outside the valvebox, harry crank-arms j and j, the former of whio 'car ries a pitman-rod, k, slotted at 70, and ii slot plays a pin, Z, projecting from the si e of lever c. The arrangement is such that, when the outer end of the lever 0 is depressed, (by the upward movement of the piston 13,) the armj shall be drawn down, and shall slide the valve 6, so as to admit the water into the top of cylinder cl, to raise the upper piston A, and allow the bricks to be pushed from the top of the molds. The slide-valve e is moved. in the opposite direction (so as to allow the water under pressure to enter the bottom of the cylinder d) by a rod, m, having a catch, m,'engaging the pin of crank-arm j and whose end is pivoted to the bell-crank lever n n ful- .crumed to the frame, and having its arm a connected, by a link, 0, to the feeder p. This feeder is similar in construction and action to that described in my former patent, No. 143,188. The arrangement of the catch-rod m is such that, when the feeder moves back from beneath the mold-piston A, the valve 6 is reversed, as stated, so as to allow the piston A to descend upon the clay in the molds. the proper time, during the descent of the lower mold-piston B, the catch m is raised from its engagement with pin j of cam j so as to allow the valve 0 to be reversed by the rod is, as before described.

The mechanism for raising the catch-rod m is as follows: Connected to said rod is a link, 1", slotted at 'r to receivea pin, 8 on an arm, 8 of a rock-shaft, 8. arm, 8 connected by a rod, t, to the lever or beam 0; and as the outer end of beam 0 descends the arm 8 is depressed, and that s raised, which brings the pin .9 against the upper end of the slot 1', and the catch m is disengaged from pin u is the cylinder of the water-engine, by which the feeder p is reciprocated,.the piston-rod u of said engine carrying a piston, u, and being attached directly to the feeder. a and a are pipes leading to the slide-valve f of said engine. The pipe 20 leads from the inner end of said cylinder to the water-space o, in connection with the This shaft has another is an adjustable collar, w having a lug, 10

extendin'g'down into the water-passage W3 in theslide-valve, so that as the shaft is oscillated the valve is reciprocated upon itsseat. w is a crank-arm on the rock-shaft, connected by its pin to a pitman-rod, m, which has a vertical slot at a." receiving a pin projecting from the side of the lever or -.beam 0. By the upward movement of that end of the beam 0 (as the piston B descends) the arm is raised and the slide-valve f is moved outwardly, so as to .low the water to pass through the port v and pipe a to the inner end of the feedergrlinder, to carry the feeder with its surplus l'ay back from beneath the followers A of piston A, as described in my former patent, No. 143,188. As the feeder moves backward it moves back the bell-crank arm n, and draws inward the arm n and the rod m, which reverses the valve 0, as before described.

The upward movement of the mold-piston A reverses the valve f by the following means: Hanging from the long end of the beam-lever T is a pitman, z, rectangular at the lower end, and passing through a guide-slot, 1, in bracket 2. The lower end of the pitman is forced outward by a spring-pin, 3, sliding in a bearing in the bracket. The purpose of this is to hold the lower end of the pitman in line with the upper (rectangular) end of the pitman 00, so that as the pitman z descends it carries down with it the pitman w, and reverses the valve f, so as to cause the feeder to move' for.- ward by the water passing through the valveport '0 and pipe to the outer end of the cylinder w, so thatth'e feeder is made to move forward and charge the molds each time the follower-piston A attains its upper position.

As the lower follower-piston B is about to reach its lower position, the pin Z on the beam 0 reaches the top end of the slot 00, and, by lifting up the pitmaniar, reverses the valve f, and the feeder is drawn back-from-the molds. Just prior to this upward movement of the pitman w, the lower end of the pitman z'is drawn off the upper end' of a; by the following means. Upon the rock-shaft s. is an arm, .9 whosepin s is brought against the side of the pitman 2, as the arms is raised by its connection (by pitmaiI-rod 't) with the beam 0. By the adjustment of. the length of this rod,

which may be done by a right and left hand screw coupling, t the time of the movement of the arm s ,-relativelyto the piston B, is regulated. .7

The movement of the valve-engine N 0 is governed by the movement of the slide-valve g. y This valve works on the seat 4.,on the plate P pwhich-"has a central exhaust-port,

h, and end ports-5 and" 6, the ezihaustport opening into the exhaust-chamber or passage it, like the exhaust-ports of the other valves, and the water passing down from the upper part or chamber, P through openings 7 and 8, to the ports 5 ai1d 6, respectively, according to the position of the valve, the water; under pressure, when the valve 9 is in its out er position, passing throughports Hand 5 and the pipeQ to the lower end ofthe cylinder 0,- and the port 6 being then an exhaust-port," and in connection with port h and 'waterpassage h. V t

When the valve 9 is in its inner position the water under pressure passes through the'ports 8 and 6, and through the pipe Q, to the upper end of the cylinder 0, and draws down the piston to close the valve M, the water exhausting from the lower part of the cylinder through the pipes and ports Q, 5, 7, h, and h, and so to the pump supply, tank, or reser- VOll.

When there is a pressure of water on the inner side of the feeder-piston w, and in the pipe u 'in connection therewith, there is al- Ways a tendency of the valve 9 to move inward, owing to the pressure of water upon the outer end of its plunger-piston 9, which extendsthrough a stuffing-box, 10, into a cham ber,11, in communication with the 'pipeu through a pipe, 12, and, by the above means, this valve is moved-inward whenever freedfrom other in fluences.

The valve g has at the inner end a rod, 13, passing through a stuffing-box, 14, and extending outside the valve-box P. 15 16 is a bell-crank fulcrumed at 17. The arm 15 of this bell-crank comes in contact with the end of the rod 13 each time the feeder moves forward, the arm 15 having jointed to its end a rod,18, whose other end is slotted at 19 to re- ;ceive a pin, 20, on the upperside of be'll'c'ra-nk'= }arm n; and as the arm n is moved toward the valve-box the pin 20 impinges against the rod 18 at the end of slot 19,and thearm 15 is forced outward against the rod 13 and reverses the valve, so as toadmit the water under pressure to the lower end of the cylinder 0, and thevalve M is raised from its seat.

When the bell-crank 15 16 is carried around into the position lastdescribed it is held in' this position until the process of pressing the bricks is concluded by the following means:

U[)Oll the top of the arm 16 is a pin, 21, which is engaged by a toggle-pawl to hold it in said position.

The toggle-pawl'has a bar or pawl proper, 22, notched at one end to engage the pin 21,-and hinged at the other end 23 to the f bar 24.. The other end of the bar 24. is hinged to a bracket, 25.- 26 is a vertical rod connecting the hinge 23 and the beam-lever c.

a rod depending from the lever-beam T and passing through the bar 22, and having at the lower end an adjustable head or jam-nut, 28. As the piston descends and the outer end of the lever-beam T rises the head 28 is brought in, contact with the bottom of bar 22, and the notched end of the pawhbar is. drawn oft": thee pin 21 to .allow' the: bellecrank 15 '16. to move;- backward under-the influence :otthe: valve-@- rod 13. 'i v I w I l The time of releaseof the pawl 22 is modifled by the movement ot'xthe lower-follower, I

waive: gand -:0pens the valve .-M,: -so: that: the lwaters :can escape from; the lower cylinder through the, valve-chamber :E. into the-. outflow-chamber. Thisallowsthelowerfollower to drop, to, open, the: mold-s v the: downward imovement ofi-the-vfollowers being: limited lfthebeam-lever cand. rod 42. Asthefollower-r Qpiston. B descends the valve. f; is reversedz i102: Asztherfeeder reaches piston B, owingto its action:lthroughithelrod 26,11pon the-hi'nge'23. i

It will besoen that thespawl ,22 isreleasedwhen the twoipistonscA andBl have approached within a certain distance of eaclr other, so'that, the brickstwilltbeaof.a,unitorm:'thickness,;and 4 this thickness may be regulated to adjustment; of the head-28 upon'the rod 7 29 is a rod, with lowerslot 30-andaiupper: slot 3L Inv the slot30 plays1a pin, 32, pro-- jecting fromthe side of the beam-lever 1c, and a pin, 33, on the.side .;of.- leverT, playsin the slot 31. In this rod turns the wrist-pin; 3410i an arm, 35, upon amok-shaft, 36. v

. The shaft 36- carries an arm, 37, connected; by a toggle-link, 38, with one end of a lever, 39, :whose other :end rests on .a pin, 40, whose lower end ,restsupon -the .-valve K., Thearrangement is such that theitoggle 37 38 is can. ried up just past its centerl bythe lever, .c, acting through: thepin 32 and rod 29,the;pin= drawing down therod by pressurelagainst the lower endwof thewslot 30f Whcn 'thei toggle is in this position: thevalve K'is heldi tightly; down-.on -its seat to keep, the port closed. against the; en trance-of Lwaten a from 1 the low pressure pump into the valve chamber H. As 1 the piston Aadescenidsthe pin 33. reaches the uppersendiof the slot 31,.and s the. arm being; drawn up the pinrtUis -relieved from the-pressune of the lever 39,and thevalve-K is allowed torise. The downward movement ofthe piston B is limited by theleveric, the end of thelever, to which the piston B isconuected, slidingin a slot, 41, at the lower end: of a-vertical rod; 42, which passes through-rthe-frames of the ma,- chine, and whoseupperend; is-screw=threaded, and carries an adjusting-nut,.43,.which rests: upon a rubber spring,.44-. Bypadjustingwthel nut upon the red the: positiom otP-the rod is regulated,: and. :consequently the lower posi; tionot' the :cylinder, in which; position-the: lever rests against the lower end: of. slot 41.-

The operation: of the press, as far as-relates' to: the-zmovementsofthepistons A3, (with, their followers the .vvalves'M; S, a, andK and the movements of the feeder, are precisely, likethose'of 1 my patent aforesaid,up om which'ithiswis an improvement; and the-pipes: leadingzto the valvdchamber- H, .fromthe highland low-pressure pumps, are supplied with weighted val:ves,as in my former patent, allowing the escapeof water from: said lpipes; int02thesupplyetank when thefwaten has at-, tained vax cert-aiua pressure. Th'eunovements ot'athe variousparts have beenminutelyde scribed; ,and I willnow gi-vea short explanaitionr-ot theunoxement of the parts'iu the-production of one-pressing of bricks. Suppose both of: the followerepistonsto be in theinupand oarriemafresh, supplyjof-clayoverthe;

molds. v The feederp, by movin gforward, reversesthe idraw backthefeeder. iitsbackward position .it acts through; bellicrank an and r0d-mato reverse-the valvee;

whichtbrccs upgthe piston d, and thevfollowerpiston A descends. Theudescentof thispiston closes the valve S,; a-nd. the valve was. cendi-ng with valve S ow-i'ng. touthe pressure: ;of'thel-;spring ..a and allows the valve'Krto; opem by-relievin g: the pin; 40' from: theipressjure of the lever-39 thrOughzconnections 29,

31,33, 34, 35,36,131, and 38; There: is no way-.06 esoapeof= water-from; the pipeon-trunk,

E anda oonsequentlythe pressure of theivwater is brought; upom both. pistons-AandB,--and the-brioksarecom pressed to as great aldensity as the; low-pressure pump is-capable of imparting; At thiS'tllDGtthGQVELlVG K dropslupon: itsiseatrand prevents the. escape ot -water from; the valve-chamber .11 into thexlowv-press--- ure-pump pipevL, and-the pressure of the highpressure pump, is broughtaupon both pis tons A;and @B.: i

On the lower piston B reachinga certain elevation, and the upper pistonAdescending;v toxaucertaiu point, the pawl 22-is drawn from; thepinz-2l, and thepressure of water-at the v endtof-the plungerepiston 913 of valve g :reverses thesaidvalye', and the valve is drawn down tozits seat, closing. the .comm unication between water-trunk Eand cylinder 0.

As-thezvalve Mis drawn: down, it draws-the; valvea from its seat, and-.ithev water escapes t'rom'the chamber E through thecentraliopen- .ingS, ofvalvel S. The piston Bthen carries; up the bricks, and :thepiston Bholds the valve K' shut, by .meansot lever=c,.rrod 29, rook-shaft" '36, toggle ii'l, 38,m:.levery 39, and-,pini 40... As: the-piston B attaiusits highest elevation with;

the: tops ofi thev followers Buflush withthe tops of I the molds, the lvalve e is. reversed; by lever 0 andnrodhwhich; causes thedesoentot' the; piston dis, and the followers A. are-raised.

from the br=icks,. (the*pistomd acting on: that Athrough the: mediumof..-lever.; 'l As the pistonAreaohes its highest position, thelower end of the pendent rodxz descends upon; the flheadofii the, rod w, and reverses the .val-vef, jto movesforwardltheieederw Asthe lower cylinder B descends, it' acts through levers,

rodvt, armmsi,rockshaft. s awn: s and pin 8 to push the lowenendot'.rod z. from: theahead of rod 00, so that the-valve f maybereversedby the continued-descent of piston B. As the feeder attains its forward position, it reverses the valve g.

I claim as my invention- 1. The valve 6 f g, in combination with the valve-box P and plate P forming the seat for all the valves, substantially as set forth.

I 2. The combination of feeder 10,1ink 0, bellcrank lever 'n n, rod 19, bell-crank lever 16 17, and valve g, substantially as set forth.

3. The combination of valve 9, bell-crank lever 15 16, with pin 21, toggle-pawl 22 24, pitman-rod 26, beam 0, rod 27, and beam T, substantially as set forth.

4. The combination of valve-box P, valve g, pressure and exhaust ports 5, 6, and h, respectively, water-pipes Q and Q, engine 0 N N, and valve M, substantially as set forth.

5. The combination of feeder 1), engine a a u, pipes 10 u valve f, ports 1: '0 o o h, shaft to, with arms w w, rod 00, and beam 0, with pin working in slotw of said rod, substantially as set forth.

6. The combination of the valve f, having shaft w, and arm w, with pitman z, beam T, spring-pin 3, shaft 8, arms 8 s pitman t, and beam a, substantially as and for the purpose set forth.

, 7. The combination of upper mold-piston A, beam T, reversing engine (1 cl 01*,water-pipes 01 d, and valve 6, its water ports and passages e e e e h, substantially as set forth.

8. In combination of the valve 6, rock-shaft 6, lug or arm '5 arm j, pit-man k, and beam 0,

arm j rod m, bell-crank lever 07. a, rod 0, and feeder 19, substantially as set forth.

9. The combination of the valve 0, shaft 7?, arm j rod m, bell-crank n a, feeder and rod 1), 0, link a, rock-shaft s, with arms 8 s pitman-rod t, and beam 0, substantially as set forth.

10. The combination of valve 1K, pin 42, lever 41, toggle 38 37, rock-shaft 36, arm 35, slotted rod 29, and beams T and c, substantially as and for the purpose set forth.

11. The combination-of piston B, rod B link B beam 0, vertical stop-rod 42, with slot 41, adjusting-nut 43, and spring 44, substantially as set forth.

ETHAN ROGERS.

Witnesses J. BARBER, THOMAS DIXON. 

